text: //
  //  UIImage+UIImageExt.h
  //  图片处理
  //
  //  Created by 灿 on 13-10-15.
  //  Copyright (c) 2013年 灿. All rights reserved.
  //
  
  #import <UIKit/UIKit.h>
  
  @interface UIImage (UIImageExt)
  - (UIImage*)imageByScalingAndCroppingForSize:(CGSize)targetSize;
  @end
  